Automobile radiator



Mar. 1.3, 1923. 1,448,451 N. KRAMER ET AL AUTOMOBILE RADIATOR Fild mm28, 1918 5 sheets-sheet 1 gwuc'nfoui Mar. 1.3, 1923.

N. KRAMER ET AL AUTOMOBILE RADIATOR 5 sheets-sheet 2 Filed June 28, 1918Mar. 13, 1923. v 1,448,451 N. KRAMER ET AL AUTOMOBILE RADIATOR FiledJune 28, 1918 5 sheets-sheet 5 awmwwoza Wm]; firm Ban brindle fla /mewablfoam m4 Fatcnted Mar. l3, teas.

rattan entree srnresenrenr crates NATHAN KRAMER AND BENJAMIN KRAI'EER,01E TRENTON, NEW JERSEY, ASSIGNORS T0 TRENTUN AUTO RADIATOR WORKS, 0FTRENTON, NEW JERSEY, A FIRM.

AUTOMOBILE RADIATOR.

Application filed June 28,

To all it may concern:

Be it known that we, NATHAN KRAMER and BENJAMIN KRAMER, citizens of theUnited States, residin at Trenton, in the county of Mercer and 'tate ofNew Jersey, have invented certain new and useful lmprovements inAutomobile Radiators, of which the following is a specification,reference being had therein to the accompanyin drawing.

%his invention relates to certain new and useful improvements inautomobile radiators and more particularly to a construction of coretherefor, the object being to provide a core having vertically disposedzigzag water passages and horizontally disposed rectangular air passagesin order to produce a radiator which is exceedingly simple and cheap inconstruction and one which has a high cooling eficiency.

Another object oi? our invention is to provide a core which is formed ofstrips of brass plaited to form rectangular a-ir passages and indentedto form substantially V- shaped depressions so that when arranged instaggered relation with the duplicate strip thus formed verticallydisposed water passages will be provided.

Another object of our invention is to provide a fin formed of a straightstrip or metal which forms a fourth side to the rectangular airpassages, said strip being independent of the water passages in order toenable the same to be formed of a cheaper material. 1

@ther and further objects and advantages of the invention will behereinafter set forth and the novel features thereof defined by theappended claims.

In the drawings, I

Figure 1 is an elevation of a portion of a radiator constructed inaccordance with our invention;

Figure 2 is a vertical section showing the vertically disposed zigzagwater passages and horizontally disposed rectangular air passages; v

Figure 3 is a section taken on line 33 01E Fig. E2; and

Figure 4 is a perspective view of a portion 1918. Serial 1%. 2t2,t6. I

between which is arranged a core having 4 vertically disposed zigzagwater passages communicating with the water chambers l and 2 andhorizontally disposed rectangular air passages extending from the frontto the rear of the radiator in order to expose the side walls of thewater passages to the air passing through'said air passages.

In forming the vertically disposed water passages I- employ two stripsof brass or analogous material, two and one-half to fiveinches wide andof any length desired according to the size of the radiator to beconstructed. Each stripis plaited to form outwardly projecting plaits 3forming three sides of an oblong. The face of each strip is indented toprovide a depression d'which terminates short of the "edges of thestrips as clearly shown in perspective view in Fig. d

in order to provide a strip having a series of J depressions in one facethereof and a series otlatera-lly extending ribs upon the opposite faceThe strips thus formed are then placed face to face in stepped relationto provide a zigzag water passage 5 adapted to extend from the upwardwater" chamber to the lower chamber as clearly shown in Fig. 2.

These strips are preferably secured together by solder or any othersuitable means 3 is a plate 6 of substantially the same size as thestrip previously described, said stri being formed of any suitablematerial as thls strip forms a fin to complete the oblong airpassage '2and is not exposed to the cooling medium employed in the radiator sothat it can be formed of cheaper material.

and arranged against the edges of the plaita lln constructing a completeradiator we have shown one manner of assembling these strips in whichthe upper and lower water chambers are connected together by plates 8which in this instance performs the function of the fins 6 and byarranging a pair of strips 111 stepped relation with the faces incontact -with one another a zigzag waterv passage is produced separatedby horizontally disposed oblong alr passages so as to allow the sldewalls of-the water passages formed by the depressions to be exposed tothe air currents passing through said air passages.

The straight marginal edges'of thestrips of brass are arranged incontact'as shown in Fig. 4 and by this construction a radiator core isprovided which can be {manufactured one another,

' 'siti oned'so as to produce waterlpassageshavconstricted portions andhorizontally ments 1 arranged stricted portions.

1 the plaits of the strips,

very cheaply as one set of dies to form 'a strip into the-desired shapeas by .arranglngthe strips thus formed with their faces in contact withone another and in stepped --relation vertically disposed zigzagwaterpassages are formed and in conjunctmn with the fin in the form of a flatplate or strip of material oblong air passages are provided for allowinga 'flee circulation of air to pass the walls or the water chamber. Y

lln Fig. 5 ll have shown the several elein respect to each other so thatthe plaits 3?" and depressions 4c, ,instead or being arranged instepp'ed relation with are arranged'in thesame hori-' zontal planewhereby substantially vertical .water' passages are formed having con-By arranging the strips in this manner a difierent design is obtainedand a construction isfp rovided which has a high cooling eficiency. y.

In order to provide means forsupportmg 6' having at eachedlge uponopposite faces, a projection 6 which is formedby, punching the metaloutwardly; from opposite sides whereby a concaved depression is formedon the strip and a convexed boss When[ the strips wlth'the depressionsand plaits are arranged as shown in Figs. 5, 6 and 7, the plaits willrest on'the bosses, as clearly shown, and by constructing the fin stripsin this manner,

disposedafir "passages '7 p e gk e cnption 1t Wlll be f -seen that we'haveprovided an automobile its cireulation through if gradiator with w;

'vide'vertically disposed zigzag water passages in order to retard theflow-of water in passages geommunicating l 'the'radiater so as to stripsarranged face to face in order-to pro- "obtain a high coolingjeficiency;

llt will bofseen that by the plaitmg of ens-n51 Qair passages.

it is only necessary-to havell provide a fin strip a bore formed ofduplicate air passa these strips three sides of an. oblong are formed wich is completed by'a' fin in the form of a flat strip or plate so as toprovide j I substantially oblong horizontally dlsposed We claim: g 1.Anautomobile radiator having a core provided with vertically disposedzigzag water passages and horizontally disposed air passages, theverticallyjdisposed .wa'ter passages being formedof duplicating stripsarranged in stepped relation with one another having contacting faces,each strip. having a series of upon one face, and a series ofdepressions upon the opposite tal planes, and fiat fins arranged toengage the ends of the plaits to obon airpassage's.

provided waterpassages and horizontally disposed substantiallyrectangular air passages, the water passages beingformed strips havingcontacting faces, the contactotsaid. strips being provided with ingfaces "recesses substantially V-shaped in cross section, said stripsbeing arranged in stepped relation with oneanother, the outer faces ofsaid strips having laterally extending said recesses forming oppositesides of an oblong-and flat fin arranged to engage the edges ofsaidplaits forming the third side of said oblong; 4 3. A radiator, having acore formed of plaited strips toprodiice laterally extendinghorizontally disposed plaits, said strips having recesses between theribs,-in the op:

posite faces of said strip from the ribs two of said strips beingarranged in contactin stepped relation to. produce a zigza callydisposed wat'er passage,- and at'fins arranged against the edges of saidplaits 110 forming horizontally disposed substantially {rectangular airpassages. I 4 4. An automob'le radiator having a'core in automobile'radiatorhaving a core. with vertically. disposed .zigzagi;

laterally extending plaits face in difierent horizonform substantiallyof duplicate .95 plaits between the enlargements formed by icevertiitormed of duplicate plaited strips provided with recesses-intheopposlngfaces thereon;v a

said 'strips havmg contacting faces and a'r ranged instepped relationwith-one'another .to produce a verticallydisposed water pas-.

sage, the plaits of saidstrip extending-from the opposite 'fac'eofthestrip containing the recesses and flat strips arranged against the:'edg'esof the plaits forminghorizontally-disj posed substantiallyrect'angularair' passages.

5. automobile radiator composed ofan upper "and lower water .pcharnber'having a core arranged between'smd'; chambers .pro

videdfwith vertically-disposed zigzag. water.

" with Said- Water y a sr sea oblong esextending frorn'the front to the.

chambers, and horizonta rear of saidradiator, said core being formed ofduplicate plaited strips and fins, said strips having recesses formed inthe opposing faces thereof, the faces of each pair of sald strips beingarranged in contact with one another and in stepped relation, the facesand recesses being arranged in different horizontal planes and uponopposite sides of said strip, said'fins being arranged to engage theedges of the plaits.

6. An automobile radiator having a core provided with verticallydisposed water passages formed of duplicate strips arranged in steppedrelation with their faces in contact with one another, said strips beingprovided with horizontally disposed plaits upon one face and recesses inthe opposite face, said recesses forming a portion of the wall of thevertically disposed water passage said plaits forming opposite sides ofthe walls of each air passage, the plaits and recesses being arranged indifferent horizontal planes the fins being arranged against the edges ofthe plaits to form the third side of each horizontally disposed air 7passage.

7. An automobile radiator having a core formed of duplicate plaitedstrips provided with receses in the faces thereof, each pair of stripshaving contacting faces to produce a vertically disposed water passage,the recesses and plaits of said strips being arin different horizontalplanes, and flat strips arranged against the edges of the plalts'formlng horizontally disposed air passages,

8. An automobile radiator having a coil provided with verticallydisposed zig-zag water passages and horizontally disposed substantiallyrectangular air passages, the vertically disposed water passages beingformed of duplicate strips arranged in stepped relation with one anotherand having connecting marginal portions secured together, each striphaving a series of lat erally extending plaits upon one face extendingthe full width of the strip and a series of embosses in differenthorizontal planes terminating short of the edges of the strip andforming upon the opposite face of the strip a series of depressionsandflat fins arranged to engage the ends of the plaits to formsubstantially rectangular air passages.

In testimony whereof we hereunto afiix our signatures in the presence oftwo witnesses;

NATHAN KRAMER. BENJAMIN KRAMER.

Witnesses: v

F ANNIE D. BUDSON, ALEXANDER BUn'soN

